Dow Microbial Control Introduces Two New Winterized AQUCAR Water Treatment Microbiocides

New cold-weather biocides provide microbial control down to -40° Fahrenheit

WILMINGTON, DE - October 10, 2018 - As hydraulic fracturing activity ramps up in colder locations across the United States to meet growing energy demand, harsher temperatures and environmental conditions remain a challenge. Providing the market with a cold-weather solution, Dow Microbial Control, a business unit of DowDuPont Specialty Products, has launched two new products within its AQUCAR™ Water Treatment Microbiocides portfolio: AQUCAR™ TN 250 LT Water Treatment Microbiocide and AQUCAR™ 7140 LT Water Treatment Microbiocide.

“Shale basins are dependent, in part, on their surrounding environment. As demand for oil increases in the Canada, Bakken and Marcellus Basins, so has the need for biocide products that can perform under extreme temperatures,” said Joe Ferrara, global industry leader for energy and water at DuPont Industrial Biosciences. “Our new biocides – winterized with methanol – help operators extend microbial control down to negative 40 degrees Fahrenheit, with a host of additional benefits.”

A Cost-Effective Formulation for Cold-Weather Regions
Engineered to meet the demands of cold climates, AQUCAR™ 7140 LT Water Treatment Microbiocide is highly effective in controlling problematic microorganisms across a variety of conditions. The glutaraldehyde-ADBAC blend is efficacious over a broad temperature and pH range, and resists freezing at temperatures as low as -40° Fahrenheit. Compatible with most fracturing fluid additives, the biocide is effective in controlling slime-forming and sulfate-reducing varieties of bacteria, and helps enhance operational sustainability.

“From topside to downhole, glutaraldehyde has proved to be one of the most versatile biocides available – efficacious in the preparation and decontamination hydraulic fracturing phases – with short-term effectiveness as a protective biocide. However, when combined with a quaternary ammonium, like ADBAC, its performance sees a noticeable increase in speed of kill,” said Ferrara. “AQUCAR 7140 LT’s synergistic combination is highly effective in controlling bacteria and is ideally-suited to meet the diverse demands of most oil and gas applications.”

A Trusted Product for Efficient Well Completions
New AQUCAR™ TN 250 LT Water Treatment Microbiocide is an antimicrobial agent designed to control bacteria under reservoir conditions for months, and is winterized to minimize freezing at temperatures as low as -40° Fahrenheit. When co-dosed with glutaraldehyde or DBNPA, the solution provides excellent compatibility with high temperatures, high salinity, fracturing fluid additives and sub-surface rock matrix, and helps minimize and delay the impact of souring, microbial induced corrosion, biofouling and plugging. The product also helps reduce amounts of contaminated flowback and produced water.

Both microbial control products are approved for use by the U.S. Environmental Protection Agency, with additional registrations underway.

AQUCAR™ Water Treatment Microbiocides play a critical role in protecting hydraulic fracturing operations from microbial contamination, maximizing productivity and reducing cost. For more information, visit

About Dow Microbial Control
Dow Microbial Control innovates with science and technology to provide long-term viable and sustainable microbial control. Our comprehensive global offering provides customers with solutions to optimize formulations, including a high performing and technically supported selection of registered actives and products. With world-class people organization-wide and a broad portfolio of microbial control technologies, Dow Microbial Control can help solve most any microbial control problem. From specialty and highly regulated to non-regulated, the company has the experience and the essentials for more sustainable microbial control protection for products and processes. 

About DuPont Industrial Biosciences
DuPont Industrial Biosciences, a DowDuPont Specialty Products Division business, works with customers across a wide range of industries to make products and industrial processes more efficient and sustainable. Through a unique combination of agriculture, biotechnology, chemistry and material science capabilities, we advance market-driven, biobased solutions to meet the needs of a growing population, while protecting our environment for future generations. For updates about how DuPont Industrial Biosciences is helping customers deliver cost-effective products with superior performance and sustainability, follow @DuPontBiobased on Twitter, find us on LinkedIn or visit our website at

About DowDuPont Specialty Products Division
DowDuPont Specialty Products, a division of DowDuPont (NYSE: DWDP), is a global innovation leader with technology-based materials, ingredients and solutions that help transform industries and everyday life. Our employees apply diverse science and expertise to help customers advance their best ideas and deliver essential innovations in key markets including electronics, transportation, building and construction, health and wellness, food and worker safety. DowDuPont intends to separate the Specialty Products division into an independent, publicly traded company. More information can be found at

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For further information contact:

\nJacqueline Coleman
\nDuPont Industrial Biosciences


Leah Sailovic
\nG&S Business Communications\t